AK4709 Datasheet, PDF (30/42 Pages) Asahi Kasei Microsystems – Low Power AV SCART Switch

[AK4709]
■ Register Map
Addr
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
Register Name
Control
Switch
Main Volume
Zerocross
Video switch
Video output enable
Video volume/clamp
S/F Blanking control
S/F Blanking monitor
Monitor mask
DC restore
Reserved
Reserved
Volume
D7
0
VMUTE
0
0
0
CIO
CLAMPB
SBIO1
0
MCOMN
0
0
0
0
D6
0
0
0
VMONO
0
TVFB
VCLP1
SBIO0
0
0
0
0
0
VOL3
D5
0
VCR1
L5
CAL
VVCR2
VCRC
VCLP0
SBV1
FVCR1
0
0
0
0
VOL2
D4
0
VCR0
L4
0
VVCR1
VCRV
CLAMP2
SBV0
TVMON
MTV
0
0
0
VOL1
D3
AUTO
MONO
L3
0
VVCR0
TVB
CLAMP1
SBT1
VCMON
MVC
VCLP2
0
0
VOL0
D2
0
1
L2
MOD
VTV2
TVG
CLAMP0
SBT0
FVCR0
MFVCR
0
0
0
1
D1
MUTE
TV1
L1
MDT1
VTV1
TVR
0
FB1
SVCR1
MSVCR
1
0
0
1
D0
STBY
TV0
L0
MDT0
VTV0
TVV
0
FB0
SVCR0
0
1
0
0
1
When the PDN pin goes “L”, the registers are initialized to their default values.
While the PDN pin = “H”, all registers can be accessed.
Do not write any data to the register over 0DH.
■ Register Definitions
Addr Register Name D7
00H Control
0
R/W
Default
0
D6
D5
0
0
0
0
D4
D3
0
AUTO
R/W
0
1
D2
D1
D0
0
MUTE STBY
0
1
1
STBY: Standby control
0: Normal Operation
1: Standby Mode (default). All registers are not initialized.
AMP: Powered down and timings are reset.
Source of TVOUT: fixed to VCRIN.
Source of VCROUT: fixed to TVIN.
Source of TVVOUT: fixed to VCRVIN (or Hi-Z).
Source of TVRC: fixed to VCRRC (or Hi-Z).
Source of TVG: fixed to VCRG (or Hi-Z).
Source of TVB: fixed to VCRB (or Hi-Z).
Source of VCRVOUT: fixed to TVVIN (or Hi-Z).
Source of VCRC: fixed to Hi-Z.
MUTE: Audio output control
0: Normal operation
1: ALL Audio outputs to GND (default)
AUTO: Auto startup bit
0: Auto startup disable (Manual startup).
1: Auto startup enable (default).
Note: When the SBIO1 bit = “1”(default = “0”), the change of AUTO bit may cause a “L” pulse on INT pin.
MS1319-E-00
- 30 -
2011/07